CN210743892U

CN210743892U - Moulded case circuit breaker with contact temperature measurement function

Info

Publication number: CN210743892U
Application number: CN201922365765.6U
Authority: CN
Inventors: 李金华; 李成林
Original assignee: NANJING ECH TECHNOLOGY CO LTD
Current assignee: NANJING ECH TECHNOLOGY CO LTD
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-06-12
Anticipated expiration: 2029-12-25

Abstract

The utility model relates to a low-voltage apparatus technical field just discloses a moulded case circuit breaker with contact temperature measurement function, which comprises a body, the positive side of body is equipped with the assembly shell, the screw has been cup jointed in the inside activity of assembly shell, the lower extreme of screw pass the assembly shell and extend to the outside of assembly shell and with body threaded connection, the spout has been seted up to the side of body, the top surface fixedly connected with spring of spout internal surface, the lower extreme fixedly connected with sunshade of spring. This moulded case circuit breaker with contact temperature measurement function through seting up the spout in the body side to connect through a spring and sunshade in the spout, the sunshade both ends joint in the spout, and the sunshade openly is located directly in front of the screw, and sunshade and the contact of screw top surface, carries out the partial seal to the screw, and the oxidation takes place for separation screw and environment, reduces the oxidation speed, extension screw corrosion time, improves device life, reduces the replacement cost, and simple structure is convenient to use.

Description

Moulded case circuit breaker with contact temperature measurement function

Technical Field

The utility model relates to a low voltage apparatus technical field specifically is a moulded case circuit breaker with contact temperature measurement function.

Background

The molded case circuit breaker can automatically cut off current after the current exceeds a trip setting, and the molded case circuit breaker refers to a device which uses a plastic insulator as a shell and is used for isolating conductors and grounding metal parts, wherein a contact is arranged inside the molded case circuit breaker and is pulled to the inside of the circuit breaker through a wire to detect the internal temperature of the circuit breaker.

When the existing plastic case circuit breaker with the contact temperature measuring function is assembled and used, the connection part of an assembly case and a screw is extremely easy to be corroded by oxidation due to the fact that the circuit breaker body is in a severe environment, the screw is corroded and fastened by corrosion, the screw is difficult to remove, the removal is invalid, the connection part of the assembly case is also damaged and invalid, and the service life is short.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a moulded case circuit breaker with contact temperature measurement function possesses increase of service life and the advantage of convenient wiring, has solved the problem of problem among the above-mentioned background art.

The utility model provides a following technical scheme: the utility model provides a moulded case circuit breaker with contact temperature measurement function, includes the body, the positive side of body is equipped with the assembly shell, the screw has been cup jointed in the inside activity of assembly shell, the lower extreme of screw pass the assembly shell and extend to the outside of assembly shell and with body threaded connection, the spout has been seted up to the side of body, the top surface fixedly connected with spring of spout internal surface, the lower extreme fixedly connected with sunshade of spring, the both ends and the spout activity joint of sunshade, the top fixed mounting of body has the junction box, wire casing and wiring hole have been seted up in the front of junction box.

Preferably, the round hole has been seted up to the top surface of junction frame, No. two springs of bottom surface fixedly connected with of round hole, the top fixedly connected with connecting block of No. two springs, the diameter of connecting block is less than the diameter of round hole, the surface and the round hole activity of connecting block cup joint.

Preferably, the top surface of the connecting block is fixedly connected with a pull rod, the bottom end of the pull rod is fixedly connected with a press rod, and the bottom end of the press rod penetrates through the top end of the wiring frame and extends to the inside of the wiring hole.

Preferably, the inner surface of the wire groove is fixedly connected with a guide roller, and the wire groove is communicated with the wiring hole.

Preferably, the number of the shielding plates is two, and the front surfaces of the two shielding plates are positioned in front of the screw.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this moulded case circuit breaker with contact temperature measurement function through seting up the spout in the body side to connect through a spring and sunshade in the spout, the sunshade both ends joint in the spout, and the sunshade openly is located directly in front of the screw, and sunshade and the contact of screw top surface, carries out the partial seal to the screw, and the oxidation takes place for separation screw and environment, reduces the oxidation speed, extension screw corrosion time, improves device life, reduces the replacement cost, and simple structure is convenient to use.

2. This moulded case circuit breaker with contact temperature measurement function sets up the round hole through the top surface at the junction frame to add No. two springs in the round hole, utilize No. two spring coupling pull rods of stereoplasm, only need carry the pull rod when making the needs wiring, drive the depression bar and rise, and the pull rod compresses tightly the electric wire that loosens behind the electric wire, has avoided traditional screw to tighten the side effect of the harm electric wire that brings, and easy operation need not seek the instrument in addition, excellent in use effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a top cross-sectional view of the structure of the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 3;

fig. 5 is an explosion diagram between the connection frame and the pull rod according to the present invention.

In the figure: 1. a body; 2. assembling the shell; 3. a screw; 4. a shutter; 5. a chute; 6. a first spring; 7. a wire frame; 8. a wire slot; 9. a guide roller; 10. a wiring hole; 11. a circular hole; 12. a second spring; 13. connecting blocks; 14. a pull rod; 15. a pressure lever; 16. a contact line.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a molded case circuit breaker with a contact temperature measuring function includes a main body 1, a mounting case 2 is disposed on a side surface of a front surface of the main body 1, a screw 3 is movably sleeved inside the mounting case 2, a lower end of the screw 3 penetrates the mounting case 2 and extends to an outside of the mounting case 2 and is in threaded connection with the main body 1, a sliding groove 5 is disposed on the side surface of the main body 1, a first spring 6 is fixedly connected to a top surface of an inner surface of the sliding groove 5, a shielding plate 4 is fixedly connected to a lower end of the first spring 6, two ends of the shielding plate 4 are movably clamped with the sliding groove 5, a wiring frame 7 is fixedly mounted on a top surface of the main body 1, a wiring groove 8 and a wiring hole 10 are disposed on the front surface of the wiring frame 7, a contact wire 16 is, the circuit breaker temperature measuring device is used for extending a detection contact into the circuit breaker to detect the internal temperature of the circuit breaker and is an existing element for completing the temperature measuring function.

Further, round hole 11 has been seted up to the top surface of junction box 7, No. two springs 12 of bottom surface fixedly connected with of round hole 11, No. two springs 12's top fixedly connected with connecting block 13, and connecting block 13's diameter is less than the diameter of round hole 11, and connecting block 13's surface and round hole 11 activity are cup jointed, and connecting block 13's diameter slightly is less than the diameter of round hole 11 for play sealed guard action to No. two springs 12.

Furthermore, the top surface of the connecting block 13 is fixedly connected with a pull rod 14, the bottom end of the pull rod 14 is fixedly connected with a press rod 15, the bottom end of the press rod 15 penetrates through the top end of the wiring frame 7 and extends to the inside of the wiring hole 10, and the press rod 15 is used for extruding a wire end, wiring wires and transmitting electric energy.

Further, the inner surface of the wire groove 8 is fixedly connected with a guide roller 9, the wire groove 8 is communicated with the wiring hole 10, and the guide roller 9 is used for guiding wires and avoiding the bending and breaking of the wires.

Further, the number of the shielding plates 4 is two, the front surfaces of the two shielding plates 4 are located in front of the screws 3, the shielding plates 4 are tightly attached to the screws 3 and used for protecting the screws 3, oxidation is reduced, and the service life is prolonged.

The working principle is as follows: after the components such as the release and the like are installed, the assembling shell 2 is covered, the screw 3 is screwed down, the shielding plate 4 is located above the screw 3, the pull rod 14 is lifted upwards to drive the pressing rod 15 to move upwards, the second spring 12 is stretched, the wire end is inserted into the wiring hole 10, the pull rod 14 is loosened, and the pressing rod 15 compresses the wire.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a moulded case circuit breaker with contact temperature measurement function, includes body (1), its characterized in that: the utility model discloses a wiring structure, including body (1), screw (3) have been cup jointed to the inside activity of body (1) positive side, screw (3) have been cup jointed to the inside activity of assembly shell (2), the lower extreme of screw (3) passes assembly shell (2) and extends to the outside of assembly shell (2) and with body (1) threaded connection, spout (5) have been seted up to the side of body (1), top surface fixedly connected with spring (6) of spout (5) internal surface, lower extreme fixedly connected with sunshade (4) of spring (6), the both ends and spout (5) activity joint of sunshade (4), the top fixed mounting of body (1) has wiring frame (7), wire casing (8) and wiring hole (10) have been seted up in the front of wiring frame (7).

2. The molded case circuit breaker with the contact temperature measuring function according to claim 1, characterized in that: round hole (11) have been seted up to the top surface of connection frame (7), No. two springs (12) of bottom surface fixedly connected with of round hole (11), the top fixedly connected with connecting block (13) of No. two springs (12), the diameter of connecting block (13) is less than the diameter of round hole (11), the surface and the round hole (11) activity of connecting block (13) are cup jointed.

3. The molded case circuit breaker with the contact temperature measuring function according to claim 2, characterized in that: the top surface fixedly connected with pull rod (14) of connecting block (13), the bottom fixedly connected with depression bar (15) of pull rod (14), the top of junction frame (7) is passed and the inside of extending to wiring hole (10) is passed to the bottom of depression bar (15).

4. The molded case circuit breaker with the contact temperature measuring function according to claim 1, characterized in that: the inner surface of the wire groove (8) is fixedly connected with a guide roller (9), and the wire groove (8) is communicated with a wiring hole (10).

5. The molded case circuit breaker with the contact temperature measuring function according to claim 1, characterized in that: the number of the shielding plates (4) is two, and the front surfaces of the two shielding plates (4) are positioned in front of the screws (3).